Could this addition take Arsenal to the next level?

Last season Arsenal conceded 44 goals; that’s more than Manchester City, United, Tottenham, Chelsea, Liverpool or Everton. That they finished third is an impressive feat considering their defensive problems. That works out 1.15 goals conceded per game. The same stat for the two teams ahead of Arsenal equates to 0.76 goals per game for Man City and 0.86 for Man Utd.
Arsenal fans might be the first to admit that they are not quite at the level to challenge for the league title in their current state but were they to shore up the defence then anything is possible. Last season they scored a reaso...